@@ -31,11 +31,11 @@
 # define SecondType id
 #endif
 {
 	FirstType _Nullable _firstObject;
 	SecondType _Nullable _secondObject;
-	OF_RESERVE_IVARS(4)
+	OF_RESERVE_IVARS(OFPair, 4)
 }
 
 /*!
  * @brief The first object of the pair.
  */